Wrench.



1. s. 001.111s011 11 W. A. WRIGHT. WRENCH. APPLIOATION FILED JUNE'28, 1911.

1,010,479. Patented Dec. 5, 1911.

Inventors by I I I Attorneys UNITED STATES PATENT OFFICE.

JOHN S. GOLLISON AND WILLIAM A. WRIGHT, 013 0RD, NEBRASKA.

WRENCH.

Specification of Letters Patent.

Patented Dec. 5, 1911.

Application filed June 28, 1911. Serial No. 635,768.

of Valley, State of Nebraska, have invented.

a new and useful Wrench, of which the following is a specification.

This invention relates to wrenches, one of. its objects being to provide a tool of this character which can be quickly adjusted and which can be used either for engaging nuts or for gripping and turning pipes and other round objects.

Another object is to provide a wrench which is cheap to manufacture, compact in construction, and will not readily get out of order.

WVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawingsthe pre- 1 v ferred form of the invention has been shown.

In said drawings,-Figure 1 is a side elevation of the wrench. Fig. 2 is a longitudinal section therethrough. Fig. 3 is a perspective view of the movable jaw. Fig. 4

is a perspective view of the links and a portion of the adjusting screw used in connection with said jaw. Fig. 5 is a sect-ion on line A-B Fig. 1. Fig. 6 is a section on line CD Fig. 1.

Referring to the figures by characters of reference 1 designates the vhead of the wrench, the same consisting of spaced side plates secured to or formed integral with a handle 2. This handle has webs 3 and 4 extending transversely thereof, there being openings between the webs and alsobetween the web 4 and one end portion of the handle and between the web 3 and the head 1. Side strips 5 are formed on or secured to the handle 2 'between the head 1. and the web 3 and these side strips have oppositely disposed slots 6 extending longitudinally therein, the side plates of the head- 1 being formed with diagonally disposed slots 7 A fixed jaw 8 is formed integral with the head 1 and cooperates with a movable j aw 9. This movablejaw hasa shank 10 extending through the head 1 and between the side strips 5, there being a diagonally disposed slot 11 in the shank and disposed substantially at right anglesto the slot 7. A guide pin 12 extends through the slots 7 and 11 and is mounted to slide therein. The pin 12 also extends through openings 13 formed in links 14 which are .movably mounted between the sides of the head 1 and between the strips 5. These links are formed with longitudinal slots 15 and are pivotally connected, at one end, to a head 16 formed at one end of an adjusting-screw 17. v Said screw is slidable, within thewebs 3 and 4 and that portion of the screw located between the webs is engaged by a nut 18. Said nut is held against longitudinal displace-. ment by the webs as will be apparentby referring to Figs. 1 and 2., The inner end of the shank 10 has a 19 extending. transversely therethrough and is s'liclable within the slot 6, this pin or screw also extending rigidly through the slots 15.- v

It will be apparent thatwhen the screw 17 is drawn toward thesmall end'of han-' dle 2 by rotating the nut 18, the links 14 will pull on the pin '12 and move it'longitudinally of the slots 7 and 11, thus causing the jaw 9 to swing downwardly and to clamp upon the working face of the 'sta' tionary jaw 8. By reversingthe movement of the screw 17, thelinks 14 will be caused to push against the pin l2, andthus-force it along the slots 7, thereby elevating the jaw 9, swinging movement of this jaw eing permitted by reason of thefact that the pin 12 is'extendedthrough theslot 11 within the shank of the jaw. Slots 6' also permit any necessary play of the pivot 'pin or screw 19.

It will be apparent that this wrench can be quickly adjusted and by providingthe operating mechanism described, the jaws can be caused to tightly grip'upon any object to be operated by the'tool.

Although the sides of the head 1 and the strips 5 have been shown integral with the head 1, it is to be understood that. they can be made up of otherwise handle.

What is claimed is A wrench including a handle a hollow. head, a stationary jaw extending from the head, a movable jaw, a. shaker:

separate plates riveted or secured upon. the sides of the guide screw or pin tending from the movable jaw and through the head, said shank and the sides of the head having diagonally disposed slots, the slots in the head being disposed at an angle to the slot in the shank, a slidable and pii'otal connection between one end of the shank and the handle, a connecting pin extending through the slots in the head and shank, links pivotally mounted on said pin, said links being disposed Within the handle, an adjusting screw pivotally connected to the links, and means mounted for rotation l 1 l l l i i within the handle and held against longitudinal movement thereby, for shifting the adjusting screw and the links.

In testimony that We claim the foregoing as our own, we have hereto aflixed our signatures in the presence of two witnesses.

JOHN S. COLLTSON. v YVILLIAM A. WRIGHT.

\Vitnesses Jon BARTA, E. M. lVILLIAMS.

Copies ofthis patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington. D. C. 

